package com.mimi.controller;

import com.mimi.dataobject.ProductCategory;
import com.mimi.dataobject.ProductInfo;
import com.mimi.dto.OrderDTO;
import com.mimi.enums.ResultEnum;
import com.mimi.exception.SellException;
import com.mimi.form.ProductForm;
import com.mimi.service.CategoryService;
import com.mimi.service.ProductService;
import com.mimi.util.KeyUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import javax.validation.Valid;
import java.util.List;
import java.util.Map;

/**
 * @Author:徐向
 * @Description:卖家端商品
 * @Date: Created in 9:32 2017/10/20
 */
@Controller
@RequestMapping("/seller/product")
public class SellerProductController {
    @Autowired
    ProductService productService;

    @Autowired
    CategoryService categoryService;

    /**
     * 列表
     * @param page 1
     * @param size 10
     * @param map
     * @return
     */
    @GetMapping("/list")
    public ModelAndView list(@RequestParam(value = "page", defaultValue = "1" ) Integer page, @RequestParam(value = "size", defaultValue = "10") Integer size, Map<String, Object> map ) {
        PageRequest pageRequest = new PageRequest(page - 1, size);
        Page<ProductInfo> productInfoPage = productService.findAll(pageRequest);
        map.put("productInfoPage", productInfoPage);
        map.put("currentPage",page);
        map.put("size",size);
        return new ModelAndView("product/list", map);

    }

    /**
     * 商品上架
     * @param productId
     * @param map
     * @return
     */
    @GetMapping("/on_sale")
    public ModelAndView onSale(@RequestParam("productId") String productId, Map<String, Object> map) {
        try {
            ProductInfo productInfo = productService.onSale(productId);
        } catch (SellException e) {
            map.put("msg",e.getMessage());
            map.put("url", "/seller/product/list");
            return new ModelAndView("common/error", map);
        }
        map.put("msg", ResultEnum.PRODUCT_ONSALE_SUCCESS.getMessage());
        map.put("url", "/seller/product/list");
        return new ModelAndView("common/success", map);
    }

    /**
     * 商品下架
     * @param productId
     * @param map
     * @return
     */
    @GetMapping("/off_sale")
    public ModelAndView offSale(@RequestParam("productId") String productId, Map<String, Object> map) {
        try {
            ProductInfo productInfo = productService.offSale(productId);
        } catch (SellException e) {
            map.put("msg",e.getMessage());
            map.put("url", "/seller/product/list");
            return new ModelAndView("common/error", map);
        }
        map.put("msg", ResultEnum.PRODUCT_OFFSALE_SUCCESS.getMessage());
        map.put("url", "/seller/product/list");
        return new ModelAndView("common/success", map);
    }

    @GetMapping("/index")
    public ModelAndView index(@RequestParam(value = "productId",required = false) String productId,Map<String,Object> map) {
        if (!StringUtils.isEmpty(productId)) {
            ProductInfo productInfo = productService.findOne(productId);
            map.put("productInfo", productInfo);
        }

        //查询所以的类目
        List<ProductCategory> categoryList = categoryService.findAll();
        map.put("categoryList", categoryList);

        return new ModelAndView("product/index", map);
    }

    /**
     * 保存/更新-商品
     * @param form
     * @param bindingResult
     * @param map
     * @return
     */
    @PostMapping("/save")
    //CachePut每次都会执行save方法内容部.然后把返回的内容放到redis.
//    @CachePut(cacheNames = "product",key = "123")
    //CacheEvict删除redis中的缓存,这个就删除再更新的方式
    //@CacheEvict(cacheNames = "product",key = "123")
    public ModelAndView save(@Valid ProductForm form, BindingResult bindingResult, Map<String, Object> map) {
        if (bindingResult.hasErrors()) {
            map.put("msg",bindingResult.getFieldError().getDefaultMessage());
            map.put("url", "/seller/product/index");
            return new ModelAndView("common/error", map);
        }

        ProductInfo productInfo= new ProductInfo();
        try {
            if (!StringUtils.isEmpty(form.getProductId())) {
                productInfo = productService.findOne(form.getProductId());
            } else {
                form.setProductId(KeyUtil.getUniqueKey());
            }
            BeanUtils.copyProperties(form,productInfo);
            productService.save(productInfo);
        } catch (SellException e) {
            map.put("msg",e.getMessage());
            map.put("url", "/seller/product/index");
            return new ModelAndView("common/error", map);
        }

        map.put("url", "/seller/product/list");
        return new ModelAndView("common/success", map);

    }
}
